Lawfag here
If they are smart they absolutely have their own attorneys. When things really starting gettting dicey they will start blaming each other. One attorney could not represent several parties at the same time unless they signed waiver, which would be insane. Any smart attorney would never take that scenario in the first place. Even paying for another’s attorney could turn on you. If a losing party starts realizing he has lost, he could argue that the other party found an attorney and paid for this attorney, therefore, they are all against my best interest. You get the drift. PAIN